EP2201386A2 - Dispositif de couplage en particulier pour un système de capteur - Google Patents

Dispositif de couplage en particulier pour un système de capteur

Info

Publication number
EP2201386A2
EP2201386A2 EP08785953A EP08785953A EP2201386A2 EP 2201386 A2 EP2201386 A2 EP 2201386A2 EP 08785953 A EP08785953 A EP 08785953A EP 08785953 A EP08785953 A EP 08785953A EP 2201386 A2 EP2201386 A2 EP 2201386A2
Authority
EP
European Patent Office
Prior art keywords
rotor
toothing
driver
sensor
coupling device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08785953A
Other languages
German (de)
English (en)
Other versions
EP2201386B1 (fr
Inventor
Bernhard Kull
Uwe Ehrhardt
Michael Spiessberger
Matthias Waibler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2201386A2 publication Critical patent/EP2201386A2/fr
Application granted granted Critical
Publication of EP2201386B1 publication Critical patent/EP2201386B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/04—Special adaptations of driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/02—Housings
    • G01P1/026—Housings for speed measuring devices, e.g. pulse generator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/18—Sensors; Details or arrangements thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/19647—Parallel axes or shafts
    • Y10T74/19651—External type

Definitions

  • Coupling device in particular for a sensor device
  • the invention relates to a coupling device, in particular for a sensor device, according to the preamble of the independent claim.
  • a gear transmission with two simultaneously running tooth engagements is already known.
  • the gears of the two gear pairs are offset relative to each other with respect to the engagement position, that in the one gear pair, a tooth at the beginning of the engagement path is when the other gear pair is a tooth at the end of the engagement path. Dirt between the gears can lead to unwanted axial displacements.
  • the space between the tooth tip and groove bottom serves to accommodate a possible contamination. Furthermore, a trouble-free installation of the two coupling parts, namely runners and drivers, is achieved for torque transmission by automatic alignment during the assembly process. This can be realized in particular when the tooth flank of the rotor toothing or the driver toothing with respect to the vertical axis of rotation about a certain angle slightly inclined. If the rotor is mounted on the driver, this tendency contributes to the fact that the two coupling elements align themselves automatically towards the axis of rotation. At the same time the necessary axial play is compensated. Axial thrust forces on the torque receiving side are prevented.
  • runners and / or drivers are mounted on a socket.
  • the bushing could for example consist of stainless steel, while the rotor is constructed of a plastic with good sliding properties such as, for example, particularly preferably POM (polyoxymethylene, from the group of polyacetals).
  • POM polyoxymethylene, from the group of polyacetals.
  • the rotor toothing consists of a softer material than the driver toothing.
  • the driver is usually directly connected to the rotating shaft, for example, the front wheel of the motorcycle.
  • the described material selection ensures that the teeth shed when locked. With the chosen material hardness, this would be the toothing of the rotor, which is normally associated with the sensor. This would not prevent the further rotation of, for example, the front wheel of the motorcycle. This increases traffic safety.
  • the rotor is equipped with a device influencing a magnetic field, in particular a counting collar.
  • the coupling device is particularly suitable for transmitting the speed to be detected by a sensor.
  • the Zählkranz can be connected directly to the rotor, which favors a simple and thus cost-effective production of the unit.
  • a sensor detects the magnetic field change which is caused by the counter rim.
  • the sensor is for this purpose mounted in a housing, which in turn is in communication with the socket. This makes it possible to realize a very compact sensor arrangement together with the coupling device.
  • FIG. 1 shows the perspective view of a sensor device with integrated coupling device
  • Figure 2 seen in Figure 1 sensor device with coupling device seen from the back
  • Figure 3 shows a perspective half section through the coupling device
  • Figure 4a is a partial perspective view of the rotor
  • the figure 4b is a sectional view along the section line AA according to FIG. 4a
  • FIG. 4c is a plan view of a part of the toothing of the rotor
  • FIG. 5 is an overall perspective view of the rotor
  • FIG. 6 is a side view of the coupling device in the mounted state with an enlarged detail view.
  • a connectable via a cable 12 sensor 10 is received in a housing 14.
  • the housing 14 is connected to a socket 16. From FIG. 2 - A -
  • the bush 16 serves as a bearing for a driver 30, that is, the driver 30 can rotate relative to the bush 16.
  • the driver 30 is formed substantially as a tubular part which is bounded on one side by a flange, while the other side terminates in a driving toothing 24.
  • the driver toothing 24 has a triangular shape in the axial direction. It engages in a rotor toothing 22 of a rotor 28.
  • the rotor 28 is also tubular and is supported by the bush 16.
  • the bushing 16 has a stop 38 for the rotor 28 on the side opposite the rotor toothing 22.
  • the stop 38 is designed in the form of a flange.
  • a radially further outwardly arranged cylindrical portion is provided, on which a Zählkranz 34 is arranged.
  • the counting rim 34 is substantially cage-shaped and has openings in the circumferential direction at regular intervals.
  • the bushing 16 is connected to the housing 14 at the side remote from the driver 30.
  • a cylindrical recess of the housing 14 of the sensor 10 can be arranged, which detects in the mounted state in the vicinity of the Zählkranzes 34 caused by this magnetic field changes. From the magnetic field detected by the sensor 10, the rotational speed or the angle of rotation is derived, with which rotor 28, driver 30 and the shaft connected thereto move relative to the stationary sensor 10.
  • the housing 14 extends over the entire axial length of the coupling device and terminates substantially flush with the flange of the driver 30, as shown in Figure 2.
  • the teeth 22 of the rotor 28 is shown in more detail.
  • the rotor teeth 22 extend axially substantially in triangular peaks.
  • the triangular tips go in the direction of the runner base body in axially parallel sections, which thus - instead of a purely tricky payment - form a free space 20 and can be referred to as a so-called groove bottom.
  • This space 20 is formed substantially rechteckfömig.
  • the rotor toothing 22 is inclined in the radial direction to the axis of rotation by an angle ⁇ relative to the vertical axis of rotation of the rotor 28, as can be seen from FIG. 4b.
  • two radially opposite tooth flanks 29 of the rotor toothing 22 are shown in section.
  • the tooth flanks 29 are inclined at an angle ⁇ with respect to the vertical of the axis of rotation. According to FIG. 4 c, it becomes clear in the plan view of the toothing 22 that the circumference of the rotor toothing 22 decreases with the radius. Either in the rotor 28 or in the driver 30 recesses 26 are provided.
  • the rotor toothing 22 engages in the driving toothing 24.
  • the driver toothing 24 is exactly matched to the triangular part of the rotor toothing 22. Unlike the rotor toothing 22, however, no groove base or rectangular free space 20 is provided in the driver toothing 24. Instead, the driving teeth 24 in the axial direction on a pure triangular shape. The inclination to the angle ⁇ is found in a corresponding manner in the driver teeth 24 again for automatic centering of rotor 28 and driver 30.
  • the tip 31 of the driver 30 comes to rest in the free space 20, that is, the tip 31 of the driving teeth 24 is not in direct mechanical contact with the rotor toothing 22. In this space 20, dirt can accumulate, which is, for example, between rotor toothing 22 and driver toothing 24 and gets there in the assembly of rotor 28 and driver 30.
  • the coupling device shown consisting of at least rotor 28 and driver 30, is preferably used for the transmission of a rotational movement for detection by a sensor device on a motorcycle.
  • the driver 30 is connected to the front axle of the motorcycle.
  • the parameters of the rotational movement, for example, of the front axle or another axle should be detected by the sensor 10.
  • the tapped by the driver 30 torque on the driver toothing 24 and the Runner gear 22 transferred to the rotor 28.
  • the rotor 28 carries the Zählkranz 34, which consists of a magnetic field influencing material, such as stainless steel or ferritic stainless steel.
  • the counting rim 34 rotates together with the rotor 28.
  • Equally well 34 magnetic poles could be arranged on the Zählkranz whose rotational movements lead to a changed magnetic field. These magnetic poles located on the counting rim 34 could for example also consist of magnetic plastic. Based on the detected magnetic field, the sensor 12 can determine the rotational movement or the rotational speed of the rotor 28. Likewise, a sensor principle is conceivable in which at least one magnetic field generating element is provided in the sensor 12, whose magnetic field is changed by the Zählkranz 34 by the change of ferromagnetic material and non-ferromagnetic material depending on the rotational movement.
  • the rotor 28 is preferably made of plastic, which has very good sliding properties.
  • plastic for example, polyoxymethylene (POM) or other plastics from the group of polyacetals is suitable.
  • POM polyoxymethylene
  • the good sliding properties are necessary because the rotor 28 is mounted on the bush 16 and thus rotates relative to the bush 16.
  • the material of the rotor 28 is to be chosen so that it is softer than the material of the driver 30. Should it come namely to a blocking of the clutch, so that the wheel continues to move the driver 30, in blocking or jamming of the rotor 28 shear the rotor teeth 22 relative to the driver teeth 24. As a result, blocking of the shaft or of the wheel can be reliably prevented.
  • the driver 30 is designed for example as a deep-drawn or steel and thus has a higher strength than the rotor 28 made of plastic.
  • recesses 26 may be provided. In these recesses 26 could also deposit dirt. About this recess 26 and the lubrication of storage could be done. Thanks to the inwardly sloping upper tooth flank 29 can be Install rotor 28 and driver 30 more easily in the correct position. The inclined by the angle ⁇ relative to the perpendicular of the axis of rotation tooth flanks 29 ensure a self-centering to the center. Furthermore, the tapered teeth 22, 24 support a joining without assembly errors. From this point of view, it is particularly advantageous that at least one toothing 22, 24 has a tip which guides the counter toothing in the desired toothed position in the axial direction.
  • An important aspect of the coupling device is also that forms a clearance 20 between rotor toothing 22 and driver teeth 24.
  • This free space could also be formed by a different geometry of the toothings 22, 24.
  • the geometries of rotor toothing 22 and driver teeth 24 could be reversed, that is, the groove bottom would be formed by appropriate design of the driver teeth.
  • the preparation of the coupling device for a sensor device is preferably carried out by first the bushing 16 is overmolded as an insert. By means of injection molding, the housing 14, which is connected to the socket 16 is formed. For the housing 14 usually polyamide 66 (PA66) is used as plastic. Subsequently, the rotor 30 is applied to the bush 16. Thereafter, the sensor 10 is screwed in the housing 14. In the last step, runners 28 and drivers 30 are connected to each other.
  • PA66 polyamide 66
  • the coupling device described for a sensor device is particularly suitable for speed detection in motorcycles.
  • the field of application is not limited to this.
  • the described device could be used for the coupling and speed evaluation of any moving waves.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Mechanical Operated Clutches (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

L'invention concerne un dispositif de couplage, en particulier pour un système de capteur. Ce dispositif de couplage comprend au moins un entraîneur (30) qui peut être relié à un arbre rotatif, l'entraîneur (30) comprenant, sur sa face avant, une denture (24) qui vient se mettre en prise avec la denture (22) d'un rotor (28) pour lui transmettre un mouvement de rotation. La denture (22) du rotor et la denture (24) de l'entraîneur sont configurées de façon à former un interstice (20) lorsqu'elles sont en prise, la denture (22) du rotor et la denture (24) de l'entraîneur n'étant pas en contact mécanique au niveau de cet interstice.
EP08785953A 2007-09-03 2008-07-07 Dispositif de couplage en particulier pour un système de capteur Not-in-force EP2201386B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041849A DE102007041849A1 (de) 2007-09-03 2007-09-03 Kupplungsvorrichtung, insbesondere für eine Sensoreinrichtung
PCT/EP2008/058772 WO2009030543A2 (fr) 2007-09-03 2008-07-07 Dispositif de couplage en particulier pour un système de capteur

Publications (2)

Publication Number Publication Date
EP2201386A2 true EP2201386A2 (fr) 2010-06-30
EP2201386B1 EP2201386B1 (fr) 2011-01-19

Family

ID=40299149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785953A Not-in-force EP2201386B1 (fr) 2007-09-03 2008-07-07 Dispositif de couplage en particulier pour un système de capteur

Country Status (6)

Country Link
US (1) US20100097054A1 (fr)
EP (1) EP2201386B1 (fr)
JP (1) JP2010538225A (fr)
AT (1) ATE496305T1 (fr)
DE (2) DE102007041849A1 (fr)
WO (1) WO2009030543A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013157999A1 (fr) * 2012-04-17 2013-10-24 Volvo Lastvagnar Ab Agencement de capteur de vitesse de roue
CN203011935U (zh) * 2012-09-03 2013-06-19 大陆汽车电子(长春)有限公司 轮速传感器
DE102021210898A1 (de) 2021-09-29 2023-03-30 Zf Friedrichshafen Ag Anordnung eines Rotors einer elektrischen Maschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE220280C (fr) *
DE450249C (de) 1926-10-10 1927-10-04 Optische Anstalt C P Goerz A G Typenkasten fuer Druckvorrichtungen, insbesondere von Rechenmaschinen
DE1012782B (de) * 1954-03-20 1957-07-25 Otto Bresges Klauenkupplung zum Kuppeln einer rasch umlaufenden treibenden Welle mit einer getriebenen Welle
DE1789074U (de) * 1958-12-31 1959-05-21 Wilhelm Kemper Landmaschinenfa Klauenkupplung fuer triebachse, die wahlweise in zwei drehrichtungen den kraftschluss herstellt und in mittelstellung einseitig als rutschkupplung arbeitet.
US4060007A (en) * 1976-09-13 1977-11-29 Brown & Sharpe Manufacturing Company Clutch teeth
DE3904158A1 (de) * 1989-02-11 1990-08-16 Neuenstein Zahnradwerk Klauenkupplung
DE4409476A1 (de) * 1994-03-19 1995-09-21 Schlafhorst & Co W Offenend-Spinnvorrichtung
US6676549B1 (en) * 1998-12-18 2004-01-13 Shimano, Inc. Motion sensor for use with a bicycle sprocket assembly
US7121395B2 (en) * 2002-08-12 2006-10-17 Deere & Company Torque disconnect mechanism
DE102004004023A1 (de) * 2004-01-20 2004-11-25 Valeo Schalter Und Sensoren Gmbh Lenkwinkelsensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009030543A2 *

Also Published As

Publication number Publication date
EP2201386B1 (fr) 2011-01-19
DE502008002432D1 (de) 2011-03-03
ATE496305T1 (de) 2011-02-15
DE102007041849A1 (de) 2009-03-05
JP2010538225A (ja) 2010-12-09
WO2009030543A3 (fr) 2009-06-18
WO2009030543A2 (fr) 2009-03-12
US20100097054A1 (en) 2010-04-22

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